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avfilter/af_afftdn: request new frames only when needed
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@ -1154,6 +1154,11 @@ static int activate(AVFilterContext *ctx)
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if (ret > 0)
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return output_frame(inlink, in);
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if (ff_inlink_queued_samples(inlink) >= s->sample_advance) {
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ff_filter_set_ready(ctx, 10);
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return 0;
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}
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FF_FILTER_FORWARD_STATUS(inlink, outlink);
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FF_FILTER_FORWARD_WANTED(outlink, inlink);
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